During the process development of Blonanserin (1), we have observed formations of unknown impurities are in the final product at enhanced levels which was identified as Des ethyl impurity, di-N-ethylpiperazine impurity, Chloro impurity and des-fluoro impurity. The present work involves detailed optimization studies directed toward the development of an efficient process for the commercial production of Blonanserin substantially free from the chloro impurity and other impurities.
在Blonanserin(1)的工艺开发过程中,我们观察到最终产品中存在未知杂质,这些杂质被鉴定为去乙基杂质、二-
N-乙基哌嗪杂质、
氯杂质和去
氟杂质,并且它们的含量显著提高。当前工作涉及针对开发一种高效工艺的详细优化研究,该工艺旨在商业化生产基本不含
氯杂质和其他杂质的Blonanserin。